Now that we have a serious amount of riders on the island at any given time, I am surprised at the lack of ‘packs’ or peletons forming. From my perspective, it appears that drafting only takes into account one rider ahead of you. If there are many other people up front, the draft effect does not seem to increase at all.
It seems for mass start events to work (with the exception of TT’s!) we would need the concept of peleton drafting.